fix: Replace Kustomize field patches in examples

[halvards]

This change replaces the obsolete use of the Kustomize patches field in the Skaffold examples with patchesStrategicMerge.

Context:
Kustomize v5 removed support for patches being an array of strings.

The patchesStrategicMerge field introduced in Kustomize v3 retains the previous behavior of the patches.

The patches field can still be used in v5 with an array of patch objects.

Additional information:

• drop support for legacy patches kubernetes-sigs/kustomize#4911
• https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize%2Fv5.0.0

[codecov]

Codecov Report

Merging #8757 (243e10a) into main (290280e) will decrease coverage by 6.09%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##             main    #8757      +/-   ##
==========================================
- Coverage   70.48%   64.40%   -6.09%     
==========================================
  Files         515      617     +102     
  Lines       23150    31171    +8021     
==========================================
+ Hits        16317    20075    +3758     
- Misses       5776     9590    +3814     
- Partials     1057     1506     +449     

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/completion.go	13.04% <0.00%> (-1.25%)	⬇️
cmd/skaffold/app/cmd/config/list.go	65.21% <ø> (ø)
cmd/skaffold/app/cmd/config/set.go	88.72% <ø> (ø)
cmd/skaffold/app/cmd/config/util.go	54.28% <ø> (ø)
cmd/skaffold/app/cmd/credits.go	100.00% <ø> (ø)
cmd/skaffold/app/cmd/credits/export.go	0.00% <0.00%> (ø)
cmd/skaffold/app/cmd/deploy.go	40.90% <0.00%> (-12.94%)	⬇️
cmd/skaffold/app/cmd/generate_pipeline.go	60.00% <ø> (ø)
cmd/skaffold/app/cmd/inspect_modules.go	65.00% <ø> (ø)
cmd/skaffold/app/cmd/inspect_profiles.go	66.66% <ø> (ø)
... and 40 more

... and 406 files with indirect coverage changes

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